CN1154152C - Fluorescent lamp with improved end cap, manufacturing method for fluorescent lamp, and lighting apparatus using the same - Google Patents
Fluorescent lamp with improved end cap, manufacturing method for fluorescent lamp, and lighting apparatus using the same Download PDFInfo
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- CN1154152C CN1154152C CNB99110319XA CN99110319A CN1154152C CN 1154152 C CN1154152 C CN 1154152C CN B99110319X A CNB99110319X A CN B99110319XA CN 99110319 A CN99110319 A CN 99110319A CN 1154152 C CN1154152 C CN 1154152C
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- cavity
- fluorescent lamp
- end cap
- protective element
- fluorescent tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/56—One or more circuit elements structurally associated with the lamp
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/56—Shape of the separate part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/34—Joining base to vessel
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- Manufacturing & Machinery (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
A fluorescent lamp includes an end cap 4 and a fluorescent tube 1 that has electrode seals 22 and 23 at its ends. The end cap 4 is made of synthetic resin and is attached to the fluorescent tube 1 by silicon resin 31. The end cap 4 includes round cavities 26 and 27 for holding the electrode seals 22 and 23 and thermal protection element holders 20 and 21 for holding thermal protection elements 16 and 17 adjacent to the electrode seals 22 and 23. Pillars 28 are provided between the thermal protection element holders 20 and 21 and the round cavities 26 and 27 to support the thermal protection elements 16 and 17. Through holes 29 are provided between the round cavities 26 and 27 and pillars 28.
Description
The present invention relates to comprise the fluorescent lamp of the end cap of doing by synthetic resin, make the method for this fluorescent lamp and use the lamp device of this lamp.
A known problem of fluorescent lamp is, the electrode hermetic unit temperature when fluorescent tube fluorescent tube end during near its working life terminal point rises rapidly.
The growth that reduces to drive the fluorescent light fittings use of the improvement of fluorescent lamp efficient and its size of while and weight.This device uses the high-frequency inverter circuit for lamp to light fluorescent lamp.But, when using fluorescent tube in this device, observe a particular problem near the terminal point of its working life.When original emissive material diffused away in the electrode filaments, the cathode fall increase had also hindered the luminous of fluorescent lamp thus.But the high-frequency inverter circuit for lamp will continue electrode filaments is supplied with pre-thermal voltage, so electrode filaments still keeps its preheat mode.Consequently, between the lead-in wire of electrode interior arc discharge takes place, this increases the temperature of electrode hermetic unit.
It is believed that above problem is that big current feed ability by the high-frequency inverter circuit for lamp causes.
The problems referred to above are particularly general on small-sized one end fluorescent lamp, and the fluorescent tube of this fluorescent lamp has relatively little diameter, and two electrode hermetic units are enclosed in the single end cap of synthetic resin work.In traditional small-sized one end fluorescent lamp, arrange by ground mutually each other as the electrode hermetic unit of problematic thermal source, so the problem that said temperature raises is particularly remarkable.Because these two electrode hermetic units are synthesized the resin end cap and surround its weak heat-dissipating.These factors cause that temperature rise is too high, can cause end cap to become deformity under extreme case.
Japanese Laid-Open Patent Application H02-192650 discloses a kind of technology, and it can stop the temperature rise of fluorescent lamp end.Near the fluorescent lamp end, be provided with a thermo-fuse, so that when its temperature of fluorescent lamp operation end of life raises, thermo-fuse will fuse, thus the turn-off lamp circuit.
This technology is used the thermo-fuse that is positioned at the fluorescent lamp outside.This makes that thermo-fuse can be in sight, thereby diminishes the outward appearance of this lamp.When fluorescent lamp is when being connected to form with single end cap by four or more fluorescent tube,, be to allow thermo-fuse hiding and do not seen by these fuses being arranged in the back side of end cap.But, can not on end cap, obtain such space usually, so that only thermo-fuse can be arranged on the outside of end cap, they can be seen significantly here.
In view of described problem, first purpose of the present invention provides a kind of fluorescent lamp, and it has rational structure, can avoid thermal protective element is placed on the outside of fluorescent lamp thus.
Second purpose of the present invention provides a kind of fluorescent lamp, and it has novel structure, and thermal protective element is enclosed in the end cap.
The 3rd purpose of the present invention provides a kind of fluorescent lamp, and it has novel structure, makes the thermal protective element can be not in sight thus, and end cap then has the external dimensions identical with conventional version.
The 4th purpose of the present invention provides a kind of fluorescent lamp, and it has the structure of every end thermal coupling of thermal protective element and fluorescent tube.
The 5th purpose of the present invention provides a kind of one end fluorescent lamp, and it comprises thermal protective element and has rational structure.
The 6th purpose of the present invention provides a kind of method of making fluorescent lamp, and this fluorescent lamp has rational structure, can avoid thermal protective element is placed on the outside of fluorescent lamp thus.
The 7th purpose of the present invention provides a kind of method of making fluorescent lamp, and it can make thermal protective element be installed in the fluorescent lamp with a synthetic resin end cap.
The 8th purpose of the present invention provides a kind of lamp device, and it has the fluorescent lamp of a plurality of thermal protective elements that have a series connection and is suitable for the high-frequency electrical illumination.
Above-mentioned first purpose realizes that by a kind of fluorescent lamp this fluorescent lamp comprises: fluorescent tube, and it has each end by electrode hermetic unit sealed electrode; Thermal protective element, it is responsive and energy breaking inner circuit to environment temperature; End cap; it has first cavity and second cavity that are formed in the surface and reaches the electrode terminal that stretches out from another surface; first cavity is adjacent with second cavity; wherein an end of fluorescent tube is inserted into first cavity; the electrode hermetic unit of insertion end is surrounded by end cap; and thermal protective element is embedded in second cavity; it is in the insertion end and the thermal coupling of electrode hermetic unit of fluorescent tube thus; a terminal of thermal protective element is connected with the lead-in wire of fluorescent tube, and another terminal is connected with electrode terminal.
Because described structure, thermal protective element is positioned to the electrode hermetic unit that is close to its coupling.Therefore, this thermal protective element is to occurring in the temperature rise sensitivity in the electrode hermetic unit when the fluorescent lifetime terminal point.
If in the sidewall between first cavity and second cavity open-work is set here, the just thermal coupling that can between the electrode hermetic unit of fluorescent tube and thermal protective element, be improved.As another advantage, make last assembling procedure that the remaining space in first and second cavity fills with synthetic material can by only on a position injection material realize that this has just simplified the assembling of fluorescent lamp.
Because the remaining space in first and second cavity is synthesized material and fills, thermal protective element and electrode hermetic unit can be fixedly mounted in the end cap.The opening of second cavity can cover with lid, makes this fluorescent lamp have appearance attractive in appearance.
Above-mentioned first purpose also can realize that this lamp comprises by such fluorescent lamp: fluorescent tube, and it is made to has two adjacent pipe ends, and has the electrode hermetic unit, with sealing thermionic cathode type electrode on every pipe end; A pair of thermal protective element, they are responsive and energy breaking inner circuit to environment temperature; Single end cap; it has a pair of first cavity and second cavity in an interarea; and has a terminal that from another interarea, stretches out; in each first cavity and second cavity different one adjacent; wherein every end of fluorescent tube is inserted in each first cavity; make end cap surround the electrode hermetic unit thus; and thermal protective element is embedded in second cavity; thus with the thermal coupling of electrode hermetic unit; reach each thermal protective element and have a terminal that is connected with the lead-in wire of fluorescent tube, and the another terminal that is connected with electrode terminal.
Here, in above-mentioned fluorescent lamp, wherein every pair second cavity can be formed in one of a pair of zone of an interarea of single end cap, and this is made near the shape of triangular prism and by the side of single end cap and two first cavitys each of zone and surrounds.
If second cavity is set on the above-mentioned position, just thermal protective element can be placed on end cap inside, required is that the end cap shape of using in the conventional version is done some change.
The the above-mentioned the 6th and the 7th purpose can realize by a kind of method of making fluorescent lamp, wherein this fluorescent lamp comprises: fluorescent tube, thermal protective element, and end cap, this fluorescent tube has the electrode that the electrode hermetic unit that is arranged on the every end of fluorescent tube is sealed in fluorescent tube inside, thermal protective element is responsive and energy breaking inner circuit to environment temperature, and the end cap electrode terminal that has first cavity that is formed in the surface and second cavity and stretch out from another surface, first cavity is adjacent with second cavity and be connected by an open-work that is located in these cavity side walls at least, and this manufacture method comprises: an end of fluorescent tube is inserted in first cavity and thermal protective element is inserted first step in second cavity; And fill remaining space in first cavity and second cavity with resin material, so that second step that fluorescent tube and thermal protective element are connected with end cap.
Because said method, the synthetic material of injection will flow in first and second two cavitys by connected component, side by side thermal protective element and fluorescent tube will be connected on the end cap thus.The injection of synthetic resin only needs to carry out on a position.
These purposes also can realize by a kind of like this method of making fluorescent lamp, wherein this fluorescent lamp comprises: fluorescent tube, thermal protective element, and end cap, this fluorescent tube has the electrode that the electrode hermetic unit that is arranged on the every end of fluorescent tube is sealed in fluorescent tube inside, thermal protective element is responsive and energy breaking inner circuit to environment temperature, and the end cap electrode terminal that has first cavity that is formed in the surface and second cavity and stretch out from another surface, first cavity is adjacent with second cavity and be connected by an open-work that is located in these cavity side walls at least, and this manufacture method comprises: thermal protective element is inserted first step in second cavity; Resin material is injected second step of first cavity; And an end of fluorescent tube inserted first cavity, so that resin material is pressed onto third step in second cavity by at least one open-work between first cavity and second cavity.
Because said method, when fluorescent tube is inserted in first cavity, the synthetic material of injection will be forced in second cavity by connected component, side by side thermal protective element and fluorescent tube will be connected on the end cap thus.Only applying of synthetic resin need be carried out once.
Above-mentioned the 8th purpose can realize that this lamp device comprises by a kind of lamp device: a lighting unit, it comprise a plurality of mutual series connection, as above disclosed fluorescent lamp; And high-frequency inverter circuit for lamp that is used to light each fluorescent lamp.
Above-mentioned lamp device comprises fluorescent lamp and high-frequency inverter circuit for lamp of a plurality of series connection.Independent outer lead is connected at every end of each fluorescent lamp and is enclosed near the thermal protective element the electrode hermetic unit.Consequently, when high temperature rise being arranged, can guarantee the thermal protective element fusing and cut off circuit in end cap inside.
From description below in conjunction with accompanying drawing, will more illustrate these and other purpose of the present invention, advantage and feature have been represented a specific embodiment of the present invention in the accompanying drawing.Accompanying drawing is:
The front view of the fluorescent lamp of Fig. 1 one embodiment of the invention;
How the lead-in wire that Fig. 2 is illustrated in this fluorescent lamp connects;
Fig. 3 is illustrated in thermal protective element pack into Forward End Cap and peripheral structure thereof;
Fig. 4 is the top view of end cap;
Fig. 5 be along Fig. 4 Vertical Centre Line X-X cut open the end cap cross section;
End cap when Fig. 6 represents to assemble and periphery thereof;
Fig. 7 represents how to inject silicones;
Fig. 8 is to use the lamp manipulated or operated apparatus of fluorescent lamp of the present invention;
Fig. 9 is the lamp manipulated or operated apparatus as Comparative Examples.
The one end fluorescent lamp of in Fig. 1 to 3, having represented one embodiment of the invention.As shown in these three figure, this one end fluorescent lamp comprises a fluorescent tube 1 and an end cap 4.Have the mercury that is sealed in wherein in this fluorescent tube 1 and as the inert gas of buffer gas, and have the electrode 2,3 that is respectively formed at its each end.End cap 4 is supporting this fluorescent tube 1.
This fluorescent tube 1 is made up of two straight tube shape bulbs 5 and 6, and fluorescent tube is made by glass and arranges abreast.On an end of straight tube shape bulb 5 and 6, form bridging part 7, to connect two pipes facing to tube wall.Form electrode hermetic unit 22 and 23 on the other end of straight tube shape fluorescent tube 5 and 6, they are sealing pipe stem 8 and 9, and these pipe stems support electrode 2 and 3 again respectively.
Lead-in wire 10,11,12, and the 13 pipe stems 8 and 9 and be connected on electrode 2 and 3 that pass in the sealing state.
Discharge path is: for example, electrode 2-straight tube shape bulb 5-bridging part 7-straight tube shape bulb 6-electrode 3 discharges through the abundant length of fluorescent tube 1 thus.
End cap 4 is integral member that formed by synthetic resin such as PETG (PET) or polybutylene terephthalate (PBT) (PBT).As shown in Fig. 3 and 4, two round cavitys 26 and 27 and two thermal protective element bearings 20 and 21 are formed in the interarea of end cap 4, and four terminals 14,15,18 and 19 stretch out from the other end.
Justify cavity 26 and 27 and have the suitable diameter and the degree of depth, to insert the pair of electrodes hermetic unit 22 and 23 of fluorescent tube 1, consequently when they were inserted into, the sidewall of justifying cavity 26 and 27 just sealed the bottom branch of live electrode hermetic unit 22 and 23.Shown in Fig. 4 and 5, circle cavity 26 and 27 base portions have hole 14a, 15a, and 18a and 19a, they are connected to and are formed on terminal 14,15, the passage of 18 and 19 inside.
Thermal protective element bearing 20 and 21 has suitable dimensions, to surround thermal protective element 16 and 17.Can see by Fig. 3 and 4, these 20 and 21 inside that are disposed in post A and B, here, the resin thickness maximum between the side of circle cavity 26 and 27 inwall and end cap 4.These posts A and B are formed in the triangular column between the side of the inwall of round cavity 26 and 27 and end cap 4.When the top was seen, seat 20 and 21 was for leg-of-mutton cavity and be similar to the shape of post A and B.Each these triangle cavity has the sidewall in end cap 4 inside, and they partly open up in round cavity 26 and 27 each in one.These parts dehisce to be called as open-work 29.In this way, seat 20 is communicated to round cavity 27, and seat 21 is communicated to round cavity 26.Seat 20 and 21 be communicated to round cavity 26 and 27 be for the electrode hermetic unit 22 that improves fluorescent tube 1 and 23 and thermal protective element 16 and 17 between thermal coupling.This has another advantage, promptly simplifies the silicones injection during fabrication, because the resin that is expelled in round cavity 26 and 27 also will flow into seat 20 and 21.
Base portions from end cap 4 in the open-work 29 between a buttress shaft 28 present 20 and the round cavity 27 rise.When thermal protective element 17 was inserted in the seat 20, this post 28 remained on thermal protective element 17 on the tram.In present 20, a wall piece 30 is formed on the position, opposite of post 28.This wall piece 30 is from rear-echelon support thermal protective element 17, and guarantees that with post 28 thermal protective element 17 is kept vertically.Consequently, the electrode hermetic unit 22 of fluorescent tube 1 and 23 and thermal protective element 16 and 17 between separately the distance can not change.
Post and wall piece form similarly concerning circle cavity 21, although these will no longer be described.Should point out, when end cap 4 is made, seat 20 and 21, post 28 and wall piece 30 all integrally form the part of end cap 4.
Best, use the thermo-fuse that when high temperature, melts as thermal protective element 16 and 17.These thermal protective elements 16 and 17 comprise that element 16c and 17c reach the lead-in wire 16a that is connected with element 16c and 17c, 16b, 17a and 17b (see Fig. 2,3, and 5).Element 16c and 17c are held between the post 28 and wall piece 30 in present 20 and 21, its lead-in wire 16b and 17b pass open-work 29 and pass the passage 18a that is formed in round cavity 26 and 27 base portions again and 19a to terminal 18 and 19.Other lead-in wire 16a and 17a are connected to the lead-in wire 10 and 13 of fluorescent tube 1.
As shown in Figure 6, the two ends of fluorescent tube 1 are inserted in round cavity 26 and 27, and thermal protective element 16 and 17 is placed in present 20 and 21.Lead-in wire 16a, 16b, the connection of 17a and 17b is as shown in Figure 2.After this, circle cavity 26 and 27 and the remaining space of seat in 20 and 21 fill with silicones, as shown in Figure 7, then, the opening at seat 20 and 21 tops covers with having identical shaped lid 24 and 25.These lids 24 and 25 are made by the synthetic resin identical with end cap 4.
Adopt said structure, thermal protective element 16 and 17 nestles up the electrode hermetic unit 22 and 23 that is sealed by the circle cavity.This has reached splendid thermal coupling, and therefore, thermal protective element 16 and 17 can be subjected to the influence that electrode hermetic unit 22 and 23 temperature raise apace at fluorescent tube working life terminal point.Thereby thermal protective element 16 and 17 will fuse and prevent the further preheating of electrode 2 and 3 thus.
The fluorescent lamp of present embodiment is to be used for the one end fluorescent lamp (see figure 1) of 100V 36W standard and to comprise end cap 4 and the fluorescent tube of being done by the PBT resin 1, this fluorescent tube has the straight tube shape bulb 5 that external diameter is 20mm, 6, it has the total length of 410mm to comprise bridging part.The fusing point that thermal protective element 16 and 17 has is about 160 165 ℃.It is the distance of 1.0 1.2mm that these thermal protective elements 16 and 17 are disposed in ionization electrode hermetic unit 22 and 23.
The reaction promptly that can raise to the temperature of the electrode hermetic unit 22 that occurs in its working life terminal point and 23 of the fluorescent lamp of present embodiment disconnects fast to cause circuit.The inside that thermal protective element 16 and 17 is easy to be installed to end cap 4 does not increase its size.Lid 24 and 25 hidden thermal protective elements 16 and 17, and then help obtaining appearance than more attractive in appearance described in the prior art.
Obviously, the present invention is not limited to: thermal protective element 16 and 17 is arranged apart from distance electrode 22 and 23 with above-mentioned.Obviously, this distance should be determined according to the size and the power grade thereof of fluorescent lamp.Find by test, can obtain good thermal coupling being up on the distance of 5mm.And, when the material that use has a good heat-transfer character fill circle cavity 26 and 27 and seat 20 and 21 in the space time, thermal protective element 16 and 17 can be arranged in ionization electrode 22 and 23 bigger distances are last.
The method of an example making above-mentioned fluorescent lamp will be described below.
At first, the thermal protective element 16 and 17 that respectively has two lead-in wires is inserted in the seat 20 and 21 of end cap 4, and makes on the lead-in wire 16b of thermal protective element 16 and 17 and the terminal 18 and 19 that 17B is connected to end cap 4.
Secondly, the lead-in wire 11 and 12 of fluorescent tube 1 is penetrated the terminal 14 and 15 of end cap 4, and the electrode hermetic unit 22 and 23 of fluorescent tube 1 is inserted in round cavity 26 and 27.Lead-in wire 10 and 13 with fluorescent tube 1 is connected on the lead-in wire 16a and 17a of thermal protective element 16 and 17 by welding or similar techniques then.Then, as shown in Figure 5, silicones 31 is expelled in the gap between end cap 4 and the fluorescent tube 1, and flows into seat 20 and 21 by open-work 29 thus.In Fig. 7, the silicones of injection is represented with oblique hachure.Then, this structure is placed in the roaster heats,, fluorescent tube 1 and thermal protective element 16 and 17 are connected on the end cap 4 securely with solidification of silicon resin 31.At last, cover seat 20 and 21 with lid 24 and 25.
As a diverse ways, fluorescent tube 1 can be inserted in the round cavity 26 and 27 of end cap 4 after silicones 31 has injected round cavity 26 and 27.So, silicones 31 will be pressed into seat 20 and 21 by the open-work 29 that is inserted through of fluorescent tube 1.As mentioned above, this silicones 31 is connected on the end cap 4 fluorescent tube 1 and thermal protective element 16 and 17.
These manufacture methods of fluorescent lamp of the present invention make fluorescent tube 1 and thermal protective element 16 and 17 be connected to the operation that end cap 4 has only carried out shot silicones 31.Therefore, need not to increase the treatment step number of times and just can obtain this connection.
The lamp device that uses fluorescent lamp of the present invention is described to get off.
Fig. 8 represents that three fluorescent lamps (being labeled as L1, L2 and L3) are in series and are connected to the structure of a high-frequency inverter circuit for lamp.As appreciable from Fig. 8, each filament F11 of each fluorescent lamp, F12, F21, F22, F31 reaches F32 and connects with thermal protective element 16 or 17, so that filament F11-F32 also is connected with thermal protective element 16 or 17 in the circuit that the capacitor preheat curent flows through.At the terminal point of fluorescent lifetime, preheat curent will cause that the temperature of lamp electrode hermetic unit raises, but this will cause the thermal protective element fusing and cut off preheat curent thus.
On Fig. 9, express a Comparative Examples.This example is represented a lamp device that uses fluorescent lamp, but each fluorescent lamp only has a filament to be connected with thermal protective element.As shown in Figure 9, in the circuit of preheat curent process thermal protective element is not set, therefore, these thermal protective elements can not stop effectively because to be continuously applied the electrode hermetic unit that the capacitor preheat curent causes overheated.
The present inventor carries out overtesting for the lamp device of investigating Fig. 8 and 9.These tests show that when the fluorescent lamp in the lamp device of Fig. 8 arrived its end of life, the increase of temperature made thermal protective element 16 and 17 fusings in the end cap 4, cuts off the capacitor preheat curent thus fully, has so just stoped the end cap damage.But, in the lamp device of Fig. 9, when the terminal point of fluorescent lifetime, can not cut off the capacitor preheat curent, this has caused end cap to damage owing to overheated.
Though for the present invention is to describe with example and with reference to the mode of accompanying drawing fully, should point out, obviously can make various changes and remodeling for those skilled in the art.Therefore, unless these changes and remodeling depart from scope of the present invention, otherwise will think that they are included among the present invention.
Claims (15)
1. fluorescent lamp comprises:
Fluorescent tube, it has the electrode that is sealed in every end by the electrode hermetic unit;
Thermal protective element, it is responsive and energy breaking inner circuit to environment temperature;
End cap, it has first cavity and second cavity that are formed in the surface and reaches the electrode terminal that stretches out from another surface, and first cavity is adjacent with second cavity,
Wherein an end of fluorescent tube is inserted into first cavity, and the electrode hermetic unit of insertion end is surrounded by end cap, and
Thermal protective element is embedded in second cavity, and it is in the insertion end and the thermal coupling of electrode hermetic unit of fluorescent tube thus, and a terminal of thermal protective element is connected with the lead-in wire of fluorescent tube, and another terminal is connected with electrode terminal.
2. according to the fluorescent lamp of claim 1,
It is characterized in that first cavity and second cavity are connected by the open-work that at least one is located in these cavity side walls.
3. according to the fluorescent lamp of claim 2,
It is characterized in that, in second cavity, be provided with the parts of on vertical position, supporting thermal protective element.
4. according to the fluorescent lamp of claim 3,
It is characterized in that the remaining space in first cavity and second cavity is filled with resin material, and on the opening of second cavity, be provided with lid.
5. according to the fluorescent lamp of claim 4,
It is characterized in that this end cap is the integral body that is made by synthetic resin.
6. fluorescent lamp comprises:
Fluorescent tube, it is made to has two adjacent pipe ends, and has the electrode hermetic unit, with sealing thermionic cathode type electrode on each pipe end;
A pair of thermal protective element, they are responsive and energy breaking inner circuit to environment temperature;
Single end cap, it has a pair of first cavity and a pair of second cavity in an interarea, and has a terminal that from another interarea, stretches out, one of them first cavity is adjacent with one of them second cavity and be connected with this second cavity by at least one open-work that is arranged on its sidewall, another first cavity is adjacent with another second cavity and be connected with this second cavity by at least one open-work that is arranged on its sidewall
Wherein every end of fluorescent tube is inserted in each first cavity, makes end cap surround the electrode hermetic unit thus, and reach heat guarantor expansion element and embedded in second cavity, thus with the thermal coupling of electrode hermetic unit, and
Each thermal protective element has a terminal that is connected with the lead-in wire of fluorescent tube, and the another terminal that is connected with electrode terminal.
7. according to the fluorescent lamp of claim 6, it is characterized in that, should be formed in one of a pair of zone of an interarea of single end cap in second cavity each, this is made near the shape of triangular prism and by the side of single end cap and two first cavitys each of zone and surrounds.
8. according to the fluorescent lamp of claim 7, it is characterized in that, owing to the part inwall vacancy between first cavity and second cavity, make each first cavity be communicated with adjacent second cavity.
9. fluorescent lamp according to Claim 8,
It is characterized in that, be used on the precalculated position, keeping the parts of a thermal protective element to be located at each second cavity.
10. according to the fluorescent lamp of claim 9,
It is characterized in that, be used on vertical position, supporting that the parts of thermal protective element are located at each second cavity.
11. according to the fluorescent lamp of claim 10,
It is characterized in that this single end cap is the integral body that is made by synthetic resin.
12. method of making fluorescent lamp; This fluorescent lamp comprises: fluorescent tube; Thermal protective element; And end cap; This fluorescent tube has the electrode that the electrode hermetic unit that is arranged on the every end of fluorescent tube is sealed in fluorescent tube inside; Thermal protective element is responsive and energy breaking inner circuit to environment temperature; And the end cap electrode terminal that has first cavity that is formed in the surface and second cavity and stretch out from another surface; First cavity is adjacent with second cavity and be connected by an open-work that is located in these cavity side walls at least
This manufacture method comprises:
One end of fluorescent tube inserted in first cavity and thermal protective element is inserted first step in second cavity; And
Fill remaining space in first cavity and second cavity so that second step that fluorescent tube and thermal protective element are connected with end cap with resin material.
13. according to the method for claim 12,
It is characterized in that resin material is injected in first cavity and second cavity on a position, and flow, to fill all remaining spaces by at least one open-work between first cavity and second cavity.
14. method of making fluorescent lamp; This fluorescent lamp comprises; Fluorescent tube; Thermal protective element; And end cap; This fluorescent tube has the electrode that the electrode hermetic unit that is arranged on the every end of fluorescent tube is sealed in fluorescent tube inside; Thermal protective element is responsive and energy breaking inner circuit to environment temperature; And the end cap electrode terminal that has first cavity that is formed in the surface and second cavity and stretch out from another surface; First cavity is adjacent with second cavity and be connected by an open-work that is located in these cavity side walls at least
This manufacture method comprises:
Thermal protective element is inserted first step in second cavity;
Resin material is injected second step of first cavity; And
One end of fluorescent tube is inserted first cavity, so that resin material is pressed onto third step in second cavity by at least one open-work between first cavity and second cavity.
15. a lamp device comprises:
A lighting unit, it comprises fluorescent lamp a plurality of mutual series connection, described in claim 1 to 11; And
Be used to light the high-frequency inverter circuit for lamp of each fluorescent lamp.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP195397/1998 | 1998-07-10 | ||
| JP19539798A JP3032504B2 (en) | 1998-07-10 | 1998-07-10 | Fluorescent lamp, method of manufacturing this fluorescent lamp, and lighting device using this fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1241801A CN1241801A (en) | 2000-01-19 |
| CN1154152C true CN1154152C (en) | 2004-06-16 |
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ID=16340464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB99110319XA Expired - Fee Related CN1154152C (en) | 1998-07-10 | 1999-07-09 | Fluorescent lamp with improved end cap, manufacturing method for fluorescent lamp, and lighting apparatus using the same |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6297585B1 (en) |
| EP (1) | EP0971389B1 (en) |
| JP (1) | JP3032504B2 (en) |
| CN (1) | CN1154152C (en) |
| CA (1) | CA2277288C (en) |
| DE (1) | DE69911692T2 (en) |
| ID (1) | ID23050A (en) |
| TW (1) | TW428209B (en) |
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| JP3324570B2 (en) * | 1999-06-16 | 2002-09-17 | 松下電器産業株式会社 | Bulb-type fluorescent lamp |
| JP3293612B2 (en) * | 1999-10-29 | 2002-06-17 | 松下電器産業株式会社 | Fluorescent lamp |
| CN1203522C (en) * | 2000-03-21 | 2005-05-25 | 皇家菲利浦电子有限公司 | Electric discharge lamp |
| US6967308B1 (en) * | 2004-05-07 | 2005-11-22 | Dell Products L.P. | System and method for information handling system peripheral heating element thermal failsafe |
| DE102005009055A1 (en) * | 2005-02-28 | 2006-08-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Low pressure discharge lamp esp. a compact florescent lamp with a base for receiving a discharge vessel |
| CN1893202A (en) * | 2005-07-05 | 2007-01-10 | 电灯专利信托有限公司 | Tube-seat structure of flurorescent lamp |
| JP5000372B2 (en) * | 2007-04-26 | 2012-08-15 | パナソニック株式会社 | Fluorescent lamp and lighting device using the same |
| JP2009110841A (en) * | 2007-10-31 | 2009-05-21 | Toshiba Lighting & Technology Corp | Base for fluorescent lamp, fluorescent lamp, and lighting apparatus |
| CN101709836B (en) * | 2009-11-02 | 2012-04-18 | 上海企一商贸发展有限公司 | Lamp |
| EP4210086A1 (en) * | 2018-01-24 | 2023-07-12 | Xylem Europe GmbH | Germicidal amalgam lamp with temperature sensor for optimized operation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638765A (en) * | 1979-09-04 | 1981-04-14 | Toshiba Electric Equip Corp | Electric discharge lamp device |
| US4450512A (en) * | 1982-09-13 | 1984-05-22 | Mcgraw-Edison Company | Arrangement for mounting a thermal protective device in a recess mounted lighting fixture |
| JPH02192650A (en) | 1989-01-20 | 1990-07-30 | Hitachi Ltd | Fluorescent lamp lighting device |
| JPH0419901A (en) | 1990-03-30 | 1992-01-23 | Toshiba Lighting & Technol Corp | Circuit device |
| US5161884A (en) * | 1990-04-30 | 1992-11-10 | The Regents Of The University Of California | Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures |
| JPH0461740A (en) | 1990-06-27 | 1992-02-27 | Stanley Electric Co Ltd | Life notifying method for fluorescent discharge lamp |
| SE467715B (en) | 1990-12-28 | 1992-08-31 | Goeran Helldin | LIGHT RANGE LAMP AND SET FOR MANUFACTURING LIGHT RANGE LAMP |
| JPH0536385A (en) | 1991-07-26 | 1993-02-12 | Toshiba Lighting & Technol Corp | Fluorescent lamp device |
| JPH10188906A (en) | 1996-12-26 | 1998-07-21 | Matsushita Electron Corp | Fluorescent lamp |
| JP3219044B2 (en) | 1997-03-31 | 2001-10-15 | 松下電器産業株式会社 | Ring fluorescent lamp |
| JPH10321192A (en) | 1997-05-16 | 1998-12-04 | Toshiba Lighting & Technol Corp | Discharge lamp and luminaire |
| JP3843556B2 (en) * | 1997-09-30 | 2006-11-08 | 東芝ライテック株式会社 | Fluorescent lamp and lighting device |
-
1998
- 1998-07-10 JP JP19539798A patent/JP3032504B2/en not_active Expired - Fee Related
-
1999
- 1999-07-01 US US09/346,756 patent/US6297585B1/en not_active Expired - Lifetime
- 1999-07-05 TW TW088111370A patent/TW428209B/en not_active IP Right Cessation
- 1999-07-06 EP EP99305381A patent/EP0971389B1/en not_active Expired - Lifetime
- 1999-07-06 DE DE69911692T patent/DE69911692T2/en not_active Expired - Fee Related
- 1999-07-08 CA CA002277288A patent/CA2277288C/en not_active Expired - Fee Related
- 1999-07-09 ID IDP990657D patent/ID23050A/en unknown
- 1999-07-09 CN CNB99110319XA patent/CN1154152C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000030664A (en) | 2000-01-28 |
| EP0971389A1 (en) | 2000-01-12 |
| US6297585B1 (en) | 2001-10-02 |
| DE69911692D1 (en) | 2003-11-06 |
| EP0971389B1 (en) | 2003-10-01 |
| CN1241801A (en) | 2000-01-19 |
| DE69911692T2 (en) | 2004-04-22 |
| CA2277288A1 (en) | 2000-01-10 |
| JP3032504B2 (en) | 2000-04-17 |
| CA2277288C (en) | 2006-01-24 |
| TW428209B (en) | 2001-04-01 |
| ID23050A (en) | 2000-01-13 |
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